Automobile heater



Y June 21,1927.

1,632,974 L. c. KARCHER ETAL AUTOMOBILE HEATER Original Filed Dec. 12.1924 Patented June `21, 1927.

UNITED STATES PATENT OFFICE.

LAWRENCE C. KARCHER AND LIONEL ASMAN, OF EVANSVILLE, INDIANA.

AUTOMOBILE HEATER.

Application led Decembeu` 12, 1924, Serial No. 755,473. Renewed November26,1926.

This invention relates to those automobile heaters which utilize theheat of the exhaust gases for heating air and delivering the heated airto the interior of the car.

The object of the invention is the provision of an improved heater ofthe class `described which will be adapted for application to theexhaust pipe leading from Vthe exhaust manifold and so constructed andarranged that heated air may be delivered to a suitable register in thefloor of the car. Our improved heater embodies a drum or shell adaptedto be slipped over the exhaust pipe after the latter has beendisconnected from the manifold, and provided with novel means forsecuring the drum to the exhaust pipe and also having an outlet pipeadapted to be inserted in a hole in the floor board of the car todeliver the heated air to Vany suitable register provided for itscontrol.

Our heater possesses several advantages, due to its improvedconstruction, among which are simplicity, cheapness of manufacture, easeof installation, adaptability to deliver a relatively large volume ofheated air due to the construction and manner of operation of theheater, and adaptability to be easily disconnected from the ioor of theear and reversed so that the heat will be directed downwardly and notinto the car during Warm weather, Without the necessity of detaching theexhaust pi e.

The foregoing, and ot er, advantages appear more fully from thefollowing description of a practical embodiment of the invention whichis shown in the accompanying drawings, in which:

Figure 1 is a side elevation showing the heater applied to the exhaustpipe of an automobile engine and to the floor board of the car.

Fig. 2 is an end elevation of the left hand end of the heater, Fig. 1;and

Fig. 8 is a section on line 3 3, Fig. 1.

A part of the exhaustv manifold of an automobile such, for instance, asa Ford, is shown at 1, the exhaust pipe appearing at 2, the two beingconnected by the usual packing nut 3.

Our heater, instead of being connected to the manifold 1 as has beenheretofore proposed, surrounds and is connected to the exhaust pipe 2for the reason that this position so locates the heater that it will beadapted to deliver the heat through the floor of the car instead ofthrough the dash or front of the body thereof, and for the furtherreason that a heater connected to the exhaust pipe may be readilyattached.

Our heater has a cylinder, shell,- or drum 4 which is wholly open at itsforward end 5. At its rearward end the drum 4 carries a novel clamp 6 bywhich the drum or shell 4 is secured to the exhaust pipe and whichprevents escape vof the air at said rearward end and insures the upwardflow of the air through the outlet pipe 7 which passes through the floorboard 8 of the car and is provided with a suitable register 9 by which'the flow of the heat into theV car Amay be 7 controlled.

The drum or shell 4 is of anyk suitable sheet metal, beingpreferably. ofcylindrical form; the outlet pipe 7 is riveted or spot welded to thedrum 4, as shown at 10.

The clamp 6 may loe modified from the construction shown according tothe car on which the heater is to be used. The clamp will be providedwith a flange when used on cars other than Fords to afford a betterclamping action on the pipe 2 of such cars.

The clamp 6 comprises two sections 11, 12, one of which, 11, is spotwelded or riveted to the end of the drum 4 at diferentpoints, as shownat 13. pivoted at 14 on a loose rivet to section 11 so that it can be'swung open or closed in relation to the section 11. Like the section 11,section 12 has a flange 15 which overlaps the end of the drum 4. Ears 16and 17 on sections 11 and 12, respectively, are connected by a screw andnut fastening 18 by which the sections 11 and 12 may be .drawn tightlyagainst the exhaust pipe 2 to assist in holding the drum on said pipe.The reception of the end of the outlet 7 in the hole in the floor board8, in connection with the engagement of the clamp 6 with the pipe 2,securely holds the heater in position.

To apply the heater, `the packing nut 3 is loosened, enabling the pipe 2to be moved sidewise suliiciently to enable the heater to be passedthereover until it is in proper position. The outlet 7 is then tted in asuitable hole in the floor board 8, the register 9 C applied and theclamp 6 tightened on the exhaust pipe. The heat from the exhaust pipecauses the air inside the .drum 4 to be heated and to rise through theoutlet 7. Vhen thecar is in motion, the outer air drawn in and forcedinto the drum 4 at its forward end 5 insures an increased volume Theother section, 12, is i of air supplied to the register vthis air beingheated by radiation from pipe 2 as it loWs through the drum and outletto the register. i

In Warm seasons when the heater is not needed, the clamp 6 is loosened,the outlet 7 pulledl out of the holein the iioor board 8 and the heatervcompletely reversed in piosition so that the outletl 7 will pointdown,- Wardlyinste'ad of upwardly.v The `clamp 6 is then tightened.Thus, Without having to remove the heater from' the exhaustmpipe, theheat is directed downwardly "below the ear and does not have 'accesstothe interior ofthe car. Vfhen cool Weather arrives, it

a simple `matter to turn the heater hack toits former positionandre-insert the outlet 7 in the hole in vthefloor board 8.

We are aware that modifications may he resorted to ,Without "departingfrom the spirit of theinvention. A

` l/Veolairn:` i g y The Combination With the exhaust :pipe of anautomobile engine, of an alitomobile heater comprising a drum or shellwhich surrounds said exhaust pipe, is open'at itsV frontend, and carrieson its side near its rear end an outlet pipe foil the delivery of the`heated air toanxopenlnmg in the floor-board of the automobile, saiddrum or shell being providedfat its rear end With a clamp oomposed rofsubstantially similar arc-shaped Sections adapted, col-leeti-vely, v-to`surround `and engage the exhaust pipe, each of said aforesaid, earscarried by said seetions, bolt and nutfineans Aeonneetiiig the ears` forclaniping the movable `sefetion around and tions closing the rear end ofthe drum, sai-d ',dp'r'uni'being internally largerthaii the eX- haustApipe. f In testimony whereof We ,alix yoursign'atures; Y Y l LAWRENCE C.KARCHER.

LIONEL ASMAN. l

yf tggfainst the fend of theldrum and around and on the exhaust pipe oftheV engine, said Asee-

